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5721942 = 231376961
BaseRepresentation
bin10101110100111101010110
3101202201000210
4111310331112
52431100232
6322350250
766431022
oct25647526
911681023
105721942
113258a86
121abb386
131254585
14a8d382
157805cc
hex574f56

5721942 has 16 divisors (see below), whose sum is σ = 11529072. Its totient is φ = 1893120.

The previous prime is 5721941. The next prime is 5721943. The reversal of 5721942 is 2491275.

It is an interprime number because it is at equal distance from previous prime (5721941) and next prime (5721943).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2659 + ... + 4302.

It is an arithmetic number, because the mean of its divisors is an integer number (720567).

Almost surely, 25721942 is an apocalyptic number.

5721942 is an abundant number, since it is smaller than the sum of its proper divisors (5807130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5721942 is a wasteful number, since it uses less digits than its factorization.

5721942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7103.

The product of its digits is 5040, while the sum is 30.

The square root of 5721942 is about 2392.0581096621. The cubic root of 5721942 is about 178.8605178285.

The spelling of 5721942 in words is "five million, seven hundred twenty-one thousand, nine hundred forty-two".

Divisors: 1 2 3 6 137 274 411 822 6961 13922 20883 41766 953657 1907314 2860971 5721942